<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org"
      xmlns:layout="http://www.ultraq.net.nz/web/thymeleaf/layout"
      layout:decorate="demo/layout/fragment">
<head>
    <meta charset="UTF-8" />
    <title>Test</title>
</head>
<body>
<div layout:fragment="content">
    <h2>Test 页面(页面内容)</h2>

</div>
</body>
</html>